The *ordinary assumption* is that being is the absolutely other of nothing, and that there is nothing as clear as this absolute distinction; indeed, nothing seems easier than being able to state it. But it is just as easy to convince oneself that this is impossible, that the distinction is *unsayable*. *Let those who insist on the distinction of being and nothing, let them just try to state in what the distinction consists*. If being and nothing had any determinateness differentiating them, then, as we said, they would be determinate being and determinate nothing, not the pure being and the pure nothing which they still are at this point. Their distinction is therefore completely empty, each is as indeterminate as the other; the distinction depends, therefore, not on them but on a third element, on *intention*. But intention is a form of subjectivity, and subjectivity does not belong to the present order of exposition. The third element in which being and nothing have their subsistence must however also be present here; and it is present indeed, it is *becoming*. In becoming, they are present as distinct; becoming only occurs to the extent that they are distinguished. This third is an other than they – they subsist only in an other, which is equivalent to saying that they do not subsist on their own. Becoming equally is the subsistence of being and of non-being; or their subsistence is only their being in a *one*; precisely this, their subsistence in a *one*, is that which equally sublates their distinction.
G.W.F.Hegel 1816 Science of Logic, page 68